Contrasting effects of organic materials versus their derived biochars on maize growth, soil properties and bacterial community in two type soils

Yue, Xinan; Liu, Xing; Wang, Fei; Shen, Changwei; Zhang, Ying

doi:10.3389/fmicb.2023.1174921

Cited by 4 publications

(3 citation statements)

References 59 publications

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“…The vital activities of the microbial community are supported by soil nutrients. Total N and available N are negatively correlated with microbial diversity, while available P is positively correlated with soil microbial diversity ( Tables 2 , 3 ), which was supported by previous research ( Yue et al, 2023 ). Additionally, the plant root exudates are decomposed and absorbed by soil microorganisms, which accelerate soil nutrient accumulation.…”

Section: Discussionsupporting

confidence: 87%

“…Straw returning technology is currently the most effective and greenish way to utilize straw resources, which have been improved to increase soil organic carbon, maintain soil quality and health, promote crop yield, and improve plant immunity ( Tang et al, 2019 ; Hao et al, 2022 ; Yue et al, 2023 ). Straw is rich in organic matter, nitrogen, phosphorus, potassium, and other trace elements, which makes it an ideal fertilizer for crop growth.…”

Section: Introductionmentioning

confidence: 99%

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The effect of low-temperature straw-degrading microbes on winter wheat growth and soil improvement under straw return

Huang,

Yan,

et al. 2024

Front. Microbiol.

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The application of straw-degrading microbes (SDMs) with straw returned to the field is an effective measure to improve soil quality, increase yield, and maintain soil microorganisms. However, the utilization of SDMs in winter in north China is limited by the poor effects at low temperatures. This study investigated the effects of a new compound SDM, including a novel low-temperature fungus Pseudogymnoascus sp. SDF-LT, on winter wheat yield, soil improvement, and soil microbial diversity. A 2-year field experiment was conducted in two different soil textures of wheat–maize rotation fields with full corn straw return and application of SDMs at an amount of 67.5 kg hm−2. After 2 years of continuous application of SDMs, the winter wheat yield increased significantly, reaching 9419.40 kg hm−2 in Ningjin (NJSDM) and 9107.25 kg hm−2 in Mancheng (MCSDM). The soil properties have been significantly improved compared with the single straw return group, especially the sandy loam soil, whose quality is relatively low. The analysis of soil microbial diversity showed that SDMs significantly reduced the Chao1, Shannon, Simpson, and observed species of the sandy loam soil in the MCSDM group. The Simpson and Shannon indexes of fungi diversity in the two experimental sites were significantly increased by SDMs. The negative correlation of fungi increased from 47.1 to 48.85% in the SDM groups. The soil-dominant microbes changed in the SDM groups, in which the interactions between microbes were enhanced. These results suggested that the SDMs changed the the soil microbial community structure and its diversity and complexity, which is beneficial for crop growth. Our study provided sufficient evidence for the utilization of low-temperature SDMs with straw return in cold winter, which plays a role in soil improvement, especially for low-quality soils, to increase crop yield.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

The effect of low-temperature straw-degrading microbes on winter wheat growth and soil improvement under straw return

Huang,

Yan,

et al. 2024

Front. Microbiol.

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“…Biochar is a carbon-rich substance produced when biomass is burned without oxygen (pyrolysis), and its potential to improve soil fertility has been documented universally [11][12][13][14][15]. Biochar significantly impacts the soil microbial communities directly and indirectly by altering the soil's physicochemical functions [16][17][18]. Biochar addition improved cellulose decomposition because of enlarged microbial activity with increased moisture content, and it enhanced the decomposition development rather than changing the decomposition pattern [19,20].…”

Section: Introductionmentioning

confidence: 99%

Response of Cellulose Decomposition and Nodulation in Soils Amended with Biochar for Peri-Urban Agriculture

et al. 2023

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Peri-urban agriculture is becoming a potential step to promote sustainable and environmental food production systems. Our aim was to study the effect of biochar application at various rates on faba bean growth, cellulose decomposition, nodulation, and selected enzyme activities associated with carbon cycling in clay and sandy soils collected from peri-urban agricultural areas near the city of El-Minia, Egypt. To achieve this aim, incubation and pot experiments were conducted under controlled greenhouse conditions using clay and sandy soil. Among the studied treatments, using biochar at the rate of 3 kg/sq·m was the most effective soil amendment followed by biochar at the rate of 2 kg/sq·m. At 60 days of incubation, the count of cellulose-decomposing microorganisms reached a high level in both clay and sandy soil, and then decreased after 90 days, regardless of the biochar rate. The response of the cellulose-decomposer ratio (Fcd/Bcd) was positively correlated with biochar rates and incubation time. The obtained results showed significant increases in fresh and dry weight in clay soil compared to sandy soil. In any case, the use of biochar as a soil amendment enhanced soil health, soil microbial communities, and increased cellulose-decomposing microorganisms, thus improving faba bean nodulation and growth.

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Shift of bacterial and fungal communities upon soil amelioration is driven by carbon degradability of organic amendments

Siedt,

Roß-Nickoll,

Schäffer

et al. 2024

Discov. Soil

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The structural response of bacterial and fungal soil communities to four carbon-rich organic amendments of increasing recalcitrance was investigated. Wheat straw, green compost, a mixed product based on biogas residues, and a fermented biochar were applied to a sandy agricultural soil of low organic carbon content. After laboratory incubation for 6 months, the community structure was investigated via DNA sequencing. All amendments caused changes in the communities of bacteria and fungi, but to different extents, with the communities exposed to more recalcitrant amendments showing the least variation compared to the non-amended soil. Changes in species composition as well as their relative abundances were observed. While the straw had a pronounced effect on bacteria (e.g., the highest number of indicator species), effects of the composted, fermented, or pyrolyzed materials were minor. Hierarchical clustering showed that the fungal communities were more different from each other than the bacterial ones with the straw-soil being most different and the biochar-soil least different from the non-amended soil. While the abundant fungal species in biochar-soil and non-amended soil were very alike, especially rare fungal species shifted upon addition of biochar. An indicator species analysis identified specific taxonomic groups which were triggered by the different organic materials. We conclude that bacterial and fungal communities strongly change upon input of degradable carbon (straw), while fungi in particular respond to the application of processed organic materials. With this study, we report the consequences of applying organic materials for the microbial community in one soil. We provide these data for meta-analyses that are required to unravel all relevant interactions across different soils, organic materials, and time. This will allow to better understand and predict the effects of organic soil amelioration measures on soil microorganisms.

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Contrasting effects of organic materials versus their derived biochars on maize growth, soil properties and bacterial community in two type soils

Cited by 4 publications

References 59 publications

The effect of low-temperature straw-degrading microbes on winter wheat growth and soil improvement under straw return

The effect of low-temperature straw-degrading microbes on winter wheat growth and soil improvement under straw return

Response of Cellulose Decomposition and Nodulation in Soils Amended with Biochar for Peri-Urban Agriculture

Shift of bacterial and fungal communities upon soil amelioration is driven by carbon degradability of organic amendments

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